Ever wondered how the curvy lines in currency notes are generated? It’s a form of engraving technique named after ‘Guillot’, a French engineer. The curves and lines are based on mathematical equations, and the ones used to prevent currency forgeries is called ‘hypotrochoid‘. Sounds more like a type of dinosaur to me.
And now, you can use this Guilloche Pattern Generator to come up with ‘fractalicious’ patterns for your own currency notes, courtesy of Subblue.com.
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